Evidence map›Paper›PMID 18466748›Full record

ArticleNeuron2008

Olfactory CNG channel desensitization by Ca2+/CaM via the B1b subunit affects response termination but not sensitivity to recurring stimulation.

Yijun Song, Katherine D Cygnar, Botir Sagdullaev, Matthew Valley, Sarah Hirsh, Aaron Stephan, Johannes Reisert, Haiqing Zhao

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
3.6field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

47 citing papers in PubMed, 101 citations in OpenAlex.

  1. Review
  2. The CaThe Journal of physiology · 2024
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  4. In Silico Reconstruction of Sperm Chemotaxis.International journal of molecular sciences · 2021
    Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. The long tale of the calcium activated ClChannels (Austin, Tex.) · 2017
    Review
  13. Article
  14. Article
  15. Cilia- and Flagella-Associated Protein 69 Regulates Olfactory Transduction Kinetics in Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  16. Article
  17. Simultaneous Loss of NCKX4 and CNG Channel Desensitization Impairs Olfactory Sensitivity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Yijun SongDepartment of Biology, The Johns Hopkins University, Baltimore, MD 21218, USA.
Katherine D Cygnar
Botir Sagdullaev
Matthew Valley
Sarah Hirsh
Aaron Stephan
Johannes Reisert
Haiqing Zhao
Johns Hopkins University · USColumbia University · USMonell Chemical Senses Center · US

Funding

Regulation of Olfactory Signal TransductionR01DC007395 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI ZHAO, HAIQING · 2008 to 2016
$3.5M
Functional Role of Odorant Receptor PhosphorylationR03DC006178 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI ZHAO, HAIQING · 2004 to 2006
$243k
NIDCD NIH HHS DC006178NIDCD NIH HHS DC007395NIDCD NIH HHS R01 DC007395NIDCD NIH HHS R03 DC006178
6 · The paper itself

Abstract

Ca2+/calmodulin-mediated negative feedback is a prototypical regulatory mechanism for Ca2+-permeable ion channels. In olfactory sensory neurons (OSNs), such regulation on the cyclic nucleotide-gated (CNG) channel is considered a major mechanism of OSN adaptation. To determine the role of Ca2+/calmodulin desensitization of the olfactory CNG channel, we introduced a mutation in the channel subunit CNGB1b in mice that rendered the channel resistant to fast desensitization by Ca2+/calmodulin. Contrary to expectations, mutant OSNs showed normal receptor current adaptation to repeated stimulation. Rather, they displayed slower response termination and, consequently, reduced ability to transmit olfactory information to the olfactory bulb. They also displayed reduced response decline during sustained odorant exposure. These results suggest that Ca2+/calmodulin-mediated CNG channel fast desensitization is less important in regulating the sensitivity to recurring stimulation than previously thought and instead functions primarily to terminate OSN responses.

Indexed as

Action PotentialsAmino Acid SequenceAnimalsCalciumCalmodulinCyclic AMPCyclic Nucleotide-Gated Cation ChannelsEvoked PotentialsMiceMice, Mutant StrainsMolecular Sequence DataNerve Tissue ProteinsOdorantsOlfactory BulbOlfactory Receptor NeuronsPatch-Clamp Techniquesamyl acetateCalciumCalmodulinCngb1 protein, mouseCyclic AMPCyclic Nucleotide-Gated Cation ChannelsNerve Tissue ProteinsPentanols

Identifiers

PMID18466748
PMCPMC2587172
OpenAlexW2008707662

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.